How to block calls to Xiaomi: all ways

Unsolicited calls can disrupt your peace at any time, distracting from work or leisure. Owners of Xiaomi, Redmi and Poco devices often face intrusive advertising or fraudulent communication attempts. Fortunately, the MIUI operating system and the more recent HyperOS provide powerful built-in tools to protect against spam.

You don't have to install third-party apps to clean up your call log. The phone's standard functionality allows you to create complex filtering rules, block entire number prefixes, and hide notifications from certain subscribers. In this article, we'll take a look at all the methods available so you can choose the most suitable one for your situation.

Effective incoming call management is not just a convenience, it’s also a matter of digital hygiene. Understanding how to block calls to Xiaomi will help you save nerves and time. Next, we’ll look at step-by-step instructions for different use cases.

Use of built-in security application

The first and most reliable tool in Xiaomi’s user arsenal is the System Security app, which is integrated deep into the shell and works at the system level, which ensures high lock efficiency. You do not need to look for additional utilities in the Play Market store, since the basic functionality is already installed.

To activate the security, open the Security app (the shield icon) and search for the Antispam section, which is where the lock control center is located. This is where the rules for SMS and voice calls are set up. The interface may vary slightly depending on the version of MIUI, but the logic remains the same.

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Update the antivirus and antispam database in the Security app before setting up so that filters work with up-to-date lists of fraudulent numbers.

Inside the Antispam menu, you can have a few key options, including enabling hidden number locks or activating Smart Locks, which uses cloud databases to identify suspicious activity, which is especially useful for combating automated calls.

• 📱 Open the Security app on the home screen.
• 🛡️ Go to the Antispam section at the bottom of the screen.
• ⚙️ Click on the gear icon in the upper right corner to access settings.
• 🚫 Select “Block Calls” and activate the switches you want.

It is important to note that enabling hard filters can lead to missing important calls if the number is mistakenly labeled as spam, so it is recommended to periodically check the log of blocked calls that is maintained in the same application.

Blocking through call log and contacts

The fastest way to limit communication with a particular subscriber is to use a direct method through a call log or contact book, an approach that is ideal when you are concerned about a particular person or organization whose number is already preserved in history.

To do the lock, look for a number in the recent call list, click on the arrow next to the number or on the number itself to open the additional menu, select "Block" in the action list that appears, and then all attempts to communicate from this number will be interrupted automatically, and the caller will hear the "busy" signal.

The same algorithm works through the Contacts app, so open the caller card, scroll down and find the switch or lock button, and in some versions of the firmware, this option is hidden in a three-dot menu in the corner of the screen, and the blacklist is then updated instantly.

If you want to temporarily ignore someone but not block completely, you can use the Do Not Disturb feature for a specific contact if it is supported by your version of Android.However, classic locking remains the most radical and effective solution for unwanted interlocutors.

Configure the rules of blocking by mask and prefix

One of the most powerful features of Xiaomi is the ability to lock a number mask, which allows you to screen out entire groups of subscribers, for example, anyone who calls from certain city codes or mobile operators.

To set up, go to the lock settings via the Security or Phone app. Find the Lock Rules or Blacklist section and select the mask add option. Here you can enter a template like +7999* to lock all numbers starting with this digit combination.

Using masks requires caution. An incorrect template can cut off legitimate calls. For example, blocking all city code can deprive you of communication with local delivery services or service centers. Use the asterisk (*) symbol at the end of the template to indicate any subsequent digits.

The system checks the incoming call through a list of masks before you set up a connection, and if the number matches the pattern, the call is reset, which is a great way to deal with bots that generate numbers sequentially.

Do Not Disturb as a Temporary Measure

When you want silence, but you don't need to block all calls completely, Do Not Disturb mode is perfect. Unlike the blacklist, this mode globally changes the behavior of the phone when incoming calls.

You can activate it through the notification curtain or in the Sound and Vibration settings. In the Do Not Disturb menu, you can set exceptions, for example, allow calls only from Favorite Contacts or repeat calls from one number for 3 minutes (in case of an emergency).

This is a good method for night time or meetings, the phone won't ring or vibrate, and the screen will remain black, and the caller will hear long horns, as if you're not picking up the phone, but your peace will not be disturbed.

• 🌙 Open Settings and select Sound and Vibration».
• 🔕 Go to the section "Do not disturb».
• ✅ Turn on the mode and set the schedule (for example, from 23:00 to 07:00).
• 📞 In the “Challenges” option, select “Nobody” or “Selected Only».

Check the notification settings for messengers if you are waiting for an important message during the mode.

Blocking Unknown and Hidden Numbers

A separate category of irritants is calls from an unknown number or hidden identifier, and many telemarketers use this feature to bypass conventional filters, and Xiaomi has a special setting for such cases.

In the Antispam menu or in the Phone app settings, find the option “Block Unknown Numbers,” which will automatically reject any calls that do not have a call party number, which is a radical but effective method.

However, be prepared for the possibility of missing calls from doctors, couriers or government officials who sometimes hide the number for security reasons or because of the organization's PBX settings.

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Hidden number blocking is a “nuclear” security option that cuts off 90% of spam, but requires increased attention to missed notifications from other services.

If you're expecting an important call from an organization, it's best not to turn it on all the time, but use it situationally when the spam flow becomes unbearable.

Third-party applications and cloud bases

While MIUI's built-in tools are powerful, sometimes they're not enough, and in such cases, specialized applications like Truecaller, Getcontact or Yandex.With a number detector come to the rescue.

These apps use crowdsourcing, a database that is fed by the users themselves, and if a thousand people tag a number as "Advertising," it automatically gets blacklisted for all users of the app, and when integrated with the call system, it allows you to block those numbers on the fly.

To install, go to the Play Market, download the app, and provide the necessary permissions to access contacts and phone. Once the initial setup and synchronization of the databases, the application will start to work autonomously.

Using third-party number detectors increases battery load and requires constant network access to check databases, and transferring your phone book to third-party servers can be considered a privacy risk.

Frequently Asked Questions (FAQ)

To sum up, Xiaomi’s ecosystem offers flexible tools for managing incoming communications. By combining built-in filters, silence modes, and third-party databases, you can completely eliminate unwanted intrusion into your personal space.